Is it okay to wear jeans to a business meeting?

Generally, no. Unless you are working in a very casual tech startup, stick to dress slacks or a suit. If you must wear denim, ensure it is dark-wash, non-distressed, and paired with a blazer.

Do I need a heavy winter coat?

If you are visiting between June and August, yes. Temperatures hover around 10°C (50°F), and the humidity makes it feel colder. A tailored wool overcoat is the standard.

Packing Business Professional Clothing for Buenos Aires by Season

Buenos Aires business culture is formal; pack tailored suits and quality leather shoes regardless of the season. Layering is your strategy, as the climate ranges from sweltering, humid summers to damp, chilly winters.

Master the layers. Regardless of the season, buildings in Buenos Aires often have inconsistent climate control. Pack a structured blazer or wool coat that can be easily removed. For men, this means high-quality cotton dress shirts; for women, silk or fine-gauge merino wool blouses.
Respect the 'Porteño' aesthetic. Locals place a high value on presentation. Avoid athletic wear or overly casual fabrics. Stick to neutral colors—navy, charcoal, and black—which allow you to mix and match while looking professional for meetings.
Select footwear for cobblestones. The city center is full of uneven cobblestone streets. Pack leather shoes with rubber soles or comfortable insoles. Women should avoid high stilettos; opt for block heels or smart loafers to ensure you can navigate the sidewalks without injury.
Adjust for the season. In winter (June-August), pack a heavy wool overcoat and a scarf. In summer (December-February), prioritize lightweight linen-blend suits or breathable wool-silk blends to handle the high humidity while maintaining a professional appearance.

Is it okay to wear jeans to a business meeting?: Generally, no. Unless you are working in a very casual tech startup, stick to dress slacks or a suit. If you must wear denim, ensure it is dark-wash, non-distressed, and paired with a blazer.
Do I need a heavy winter coat?: If you are visiting between June and August, yes. Temperatures hover around 10°C (50°F), and the humidity makes it feel colder. A tailored wool overcoat is the standard.